oracle等待事件1：Failed Logon delay等待事件

 

该等待事件是因为用户登陆密码错误。

 

开启审计日志并查看登陆密码错误的用户或程序

SQL>alter system set audit_trail=db scope=both;

SQL>shutdown immediate;

SQL>startup;

SQL>audit create session;

SQL>audit alter user;

select * from sys.aud$ where returncode='1017';

select * from dba_audit_trail where username='';

 

关闭审计日志：

alter system set audit_trail=none scope=spfile;